18537054071 has 2 divisors, whose sum is σ = 18537054072. Its totient is φ = 18537054070.

The previous prime is 18537054023. The next prime is 18537054101. The reversal of 18537054071 is 17045073581.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18537054071 - 2⁶ = 18537054007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18537054271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9268527035 + 9268527036.

It is an arithmetic number, because the mean of its divisors is an integer number (9268527036).

Almost surely, 2^18537054071 is an apocalyptic number.

18537054071 is a deficient number, since it is larger than the sum of its proper divisors (1).

18537054071 is an equidigital number, since it uses as much as digits as its factorization.

18537054071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117600, while the sum is 41.

The spelling of 18537054071 in words is "eighteen billion, five hundred thirty-seven million, fifty-four thousand, seventy-one".